Docs/数据库/mysql/B-tree与B+tree.md
2022-10-18 16:59:37 +08:00

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B树的非叶子节点也存储数据而每层节点有16k大小(mysql),所以存储的数据会比较少
B+树的非叶子节点上不存储数据叶子节点包含所有索引字段每层节点就会多存很多索引8b索引+6b下级分叉的地址
查询innodb的分页大小
show gloobal status like 'innodb_page_size';